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Found 9 results

  1. Simon_Carr

    Fitting a SCSI2SD in a 68k Mac

    Okay, as promised, here is my idiots guide to installing a SCSI2SD to replace a defective HDD. This has been tried and tested in my Centris 650, but should be broadly applicable to any 68k Mac. Thanks to gadget, rezwits and olePigeon for helping me to get it right over the weekend! Actually, the process is really quite straight-forwards to get a SCSI2SD working in your old 68k Mac. You do need the following (as well as the SCSI2SD and a MicroSD card); A modern Mac that you can install the SCSI2SD-UTIL software onto (the current version only runs on Intel Macs, but I believe that older versions of the software are available); A legitimate copy of the OS you are planning to install (I used the freely available System 7.5.3 with 19 1.4mb disk parts (important: these are NOT disk images); A Floppy Disk of OS 7.5.3 Disk Tools 1, to act as a boot disk for the 68k Mac. Basilisk II emulator (actually not really necessary, but handy to have nonetheless); A floppy disk-drive that you can connect to your modern Mac to add some software to a 'Disk Tools 1' floppy disk that is used to start-up the 68k Mac. ​STEP 1: Install the SCSI2SD-UTIL software: this is available from the SCSI2SD website (link here). When run, this opens Terminal which then activates a GUI to allow you to setup your device: First job is to update the SCSI-SD firmware (there are detailed instructions on doing this on the SCSI2SD website); Then, you need to setup the parameters of your SCSI2SD: As far as I can gather, there is no need to change any of the 'General' settings for a 68k Mac, but you do need to change settings in the Device tab for the system you are using. Detailed information can be found here, but essentially you need to con the Apple SC HD setup software into believing your SCSI2SD is a valid hard drive. To do this, you need to do the following: Set the vendor to the string " SEAGATE" (yes, there is a single space in front of SEAGATE for a total of 8 characters) Set the product ID to the string " ST225N" (10 spaces in front for a total of 16 characters) Set the revision to the string "1.0 " (with a space after, for a total of 4 characters) You also need to assign your SCSI2SD an ID: if, like me this is going to replace the startup HDD, the ID needs to be set to 0. STEP 2: Initialise the microSD card: This was the first bit where I got confused, and needed advice from the forum, although the solution ended up being very simple! You need to set up the SD card so that it has a valid Apple Partition Map, thus allowing the drive to operate. There are many alternative ways to do this, but what was simplest (and worked!) was the following Connect the SCSI2SD (with the microSD card inserted) to the relevant SCSI cable port in the 68k Mac. In my situation, I simply replaced the SCSI2D for the original hard drive. Although the newer SCSI2SD's have a molex cable for power, just like normal hard drives, it is not required, as the SCSI cable provides sufficient power to drive the card. One of the disk parts for System 7.5.3 mentioned above is the 'Disk Tools 1', which once saved onto a floppy disk can then be used to start-up the 68k Mac without a hard-drive or other startup disk involved. I cannot remember offhand which part/image it is (17 or 18, maybe?), but they are all freely available. I don't know whether we are allowed to upload an image of that disk, but if someone were to let me know if this is permitted, I would be happy to share it on this forum. On Disk Tools 1 is a utility called Apple HD SC Setup 7.3.5 (also available here); however, the original version only works with Apple Hard Drives, so a patch is required to permit the initialising of the SCS2SD (once it has been camouflaged as a Seagate drive in Step 1). Save the patch to Disk Tools 1, update the Apple HD SC software (which will create a new, patched version of the utility on the floppy disk - don't worry, there is available space!) and then insert the floppy into the disk drive and start up the 68k. Open Apple HDSC (patched), and first of all 'Initialise' the drive. This will create a small 20Mb partition, as well as the bit that runs the HFS filesystem. Then you can enter the 'Partition' section and first of all remove the feeble 20Mb partition, and then by clicking on the grey area of the drive map you can create a new 'Macintosh Volume' (or as many as you like, up to 2Gb each) for which you can set the size and the name. STEP 3: Installing the OS: This is another area that many other forum posts seem to have identified different ways of achieving the end result, but the following worked perfectly for me! Shut-down the 68k Mac and take the microSD card from the SCSI2SD and connect it to a more modern Mac (I used a G4 eMac for this stage, not for any particular reason: I'm sure it would work on anything). You should see that the volume(s) created in Step 2 appear as external disks on your desktop. Copy the install disk parts for OS 7.5.3 into one of the volumes you have created onto your chosen startup volume of the MicroSD card. With 7.5.3 you should have 19 files, the first with a .smi file type, and the remaining 18 with a .part suffix. Just copy them all across. I used BasiliskII to first of all check that all of them worked properly (because I am cynical like that), by using them to install 7.5.3 on the emulator, and then I used those for the copy onto the MicroSD card. Now, replace the MicroSD card in the SCSI2SD, insert the Disk Tools 1 floppy into the 68k Mac, so that you can startup the 68k Mac; Once the Mac is running, access the Volume in which the 7.5.3 install parts have been placed, double click on file 1 (the .smi one) and LO! you are now properly installing 7.5.3 onto your SCSI2SD card. So there we are, finally an idiots guide, which definitely worked for me. After I did this, I set the SCSI2SD to SCSI ID = 1 using the utility, and again using the Disk Tools 1 as a boot disk, plugged both an old HD (that was too full to install the system software properly, but had loads of software I wanted to keep) and SCSI2SD in, so that I could transfer all the files and software I wanted to keep on the Mac. Once this was complete, I reset the SCSI2SD ID to 0 (so it works as the main startup disk) and restarted the Centris. The Centris seems to work very happily using the SCSI2SD, the only weird thing is just how quietly it runs now! Anyway, I hope this is of some use to other out there; I've now bought a second SCSI2SD to put into a Mac Classic which I think could use the extra capacity! Cheers, Simon
  2. GerrySch

    LC 475 Questions

    To All: Hi, I'm Gerry. I'm new here because I come from the Apple II world. I belong (for some 30 years) to the still active OAC (Original Apple Corps) Users Group here in Santa Monica Ca. With much of the group we discuss Macs since that's what people want help with but we also talk about Apple IIs and PCs. I have a couple of Apple IIgs-es, and recently an Apple IIe card for the classic LC series Mac. I bought an LC 475 and added 128 MBs of system RAM and upped the display RAM to 1 MB. So far everything works great. Then, in an effort to replace the noisy boot hard drive, I replaced it with a SCSI2SD card and a 32 GB miniSD card. After a lot of head-scratching and trying to figure out which version of HD SC setup to use (as it turned out Drive Setup 1.5 worked best) I divided the SD card into 4 SCSI drives (0-3) and partitioned drive 0 for 6 partitions, 4-2GB HFS (for compatibility) and 2-32 MB ProDOS partitions along with the other three drives having 2-4 GB HFS hard drive partitions. So there are 12 drives on the desktop. While trying to install System 7.5.3 on the first HD, I had a lot of freezing and crashing issues and had to repair the partitions using Disk First Aid. After completing the install and upgrading to 7.5.5, the system works well except when I copy files from virtual one drive partition to another (for backup), I still get periodic freezing/crashing. Finally, in an effort to get the LC 475 talking to other computers, I purchased an AsanteTalk bridge and got the LC 475 and my iMac G3, running 9.2.1, talking using Appletalk over TCP/IP on my network. So, after all my head-banging I have some questions. I have the iMac on my my network but it doesn't work well accessing the internet due to the age of the included browsers. I also have a late 2008 Mac Pro on the network running OS X 10.11.6 (no more system OS upgrades). I'd like for the LC 475 to access shared files on the Mac Pro so I can easily transfer software images but I can't get file sharing working, even between the iMac G3 and the Mac Pro. So my first question is there any way to share files between the LC 475 or the iMac G3 with the Mac Pro? My research so far says no but hopefully someone will have a suggestion. BTW, I can ping the iMac G3 from the Mac Pro but not the LC 475. Second, Since I have 132 MBs of RAM in the LC 475, System 7.5.5 swallows it all up except for around 3.2 MBs according to the Finder. If I pull out the 128 MB SIMM and reboot, the LC 475 reboots and along with 12 MBs of Virtual Memory, boots fine with again about 3.2 MBs of memory available according to the Finder. How do I limit how much RAM System 7.5.5 swallows up so I can run as many applications as I want? I've searched but, so far, I've seen no comments on 7.5.5 being a memory hog or how to control it. Thank you for any insights you have. Gerry
  3. Have a IIcx with a SCSI2SD (v5) and a ROM-inator II. The Zip drive works just once after each power-up. Second boot seem to obstruct the SCSI2SD, leaving just the flashing-question-mark-disk on screen. Is this a termination problem? /k
  4. I have an LC 575 I'm trying to get an SCSI2SD working on. I don't have any other macs (on the net) to use to patch my Drive Setup so I can format any disk. Do you think any of you fine people could, and attach the resulting file to this forum? http://lowendmac.com/2007/format-any-hard-drive-for-older-macs-with-patched-apple-tools/
  5. I have a Centris 650 that I have been slowly refurbishing over the past few months (yes, that slowly), starting off by recapping all the electrolytics in the PSU, giving the PCB a thorough clean and getting it ready to add 64Mb of RAM, a NUBUS card and, most importantly, replacing the old, broken Quantum HDD with a SCSI2SD. I want to get the system up and running before adding the RAM and NUBUS card. I have been trawling the 68k forums and t'Interweb for an idiots guide (I'm not a complete idiot, but I like to find something that takes me through the process step by step so that I can follow and understand each stage), and the closest I have found is this: http://www.codesrc.com/mediawiki/index.php?title=HFSFromScratch, which although for Linux has been the best I have been able to find. I notice that many other posts also echo that there is a lack of guidance in setting up a SCSI2SD on a Macintosh, so I don't feel alone! So, following this guide as best I can, I have done the following: 1: I have used SCSI2SD-util to setup the microSD card, and have changed the vendor details following the guidance elsewhere on this forum: -Set the vendor to the string " SEAGATE" (yes, there is a single space in front of SEAGATE for a total of 8 characters) -Set the product ID to the string " ST225N" (10 spaces in front for a total of 16 characters) -Set the revision to the string "1.0 " (with a space after, for a total of 4 characters) 2: Using BasiliskII on a G4 eMac I have created an 800MB system 7.5.5 image which is hosted on the microSD card (following these instructions: http://www.emaculation.com/doku.php/basiliskii_osx_setup). 3: Prepend the Apple Partition Map.... ???? I have no idea what I should be doing here, I have a Raspberry PI with Debian, but despite downloading the package of files relating to HFDISK I have ground to a complete halt. Can anyone give me some guidance? Is there an easier way of doing this in Terminal or similar? What is the obvious thing I am missing? I have used the patched HD SC app on the Centris (via a Disk Tools floppy), and the computer can detect the SCSI2SD, but wants to initialise the disk (which I am guessing will wipe it), leaving me without my system 7 on board. I've tested the disk using patched HD SC and it has no problems, but I'm assuming that the partition map needs to be updated to become readable. Somebody, please, help me on this one: I am not an engineer or software designer, I just want to use my old Centris once again! Simon
  6. Simon_Carr

    Upgrading/Refurbishing a Classic

    Hello All, Having finally maxed out my Centris 650 (just awaiting the delivery of my final bank of 64Mb of RAM to top it out at a full 136Mb), I'm now turning my attention to my lovely little Mac Classic that was recently given to me by a friend who has had it since new. It is completely original, with a 40Mb Quantum HDD and came with the fully expanded RAM board, which is nice: my friend said that he never had a problem with it that required any maintenance or repair, and he has had it under a dust cover in his office since 1991. As with all my retro computer rebuilds (I also have a collection of Sinclair ZX Spectrums, ZX81s and QLs), when I refurbish them, I like to do everything together, so that once rebuilt, the computer is as upgraded as possible as well as fully refurbished. I appreciate that the expansion and upgrade options on a Mac Classic are very limited, so I am just looking to see whether my list below is comprehensive in terms of what can be realistically done to the Classic whilst I have it in bits: 1: Replace PRAM battery (done immediately when I received it! First time the Mac had ever been opened up since being assembled!) 2: Replace SMD Electrolytic caps on Logic Board 3: Replace Electrolytic caps on Analog Board 4: Replace Quantum HDD with a SCSI2SD unit 5: clean everything 6: err.....? Is that it? I'm not interested in turning it into a FrankenMac by completely changing its innards: I like the idea of a simple Mac Classic in the manner its creator intended, but is there anything else I should look at doing while I have it in pieces?
  7. Hi all! This is my first post to 68k... So here goes: I decided to create my own SCSI2SD bracket, simply because I couldn't find any other brackets for the smaller V5.0a board. I used a 3.5" desktop hard drive as my inspiration, and with some refinements, I think this bracket is a good, one-piece design. My goal was to make improvements, and once satisfied, offer it for sale. But, I think there are a couple of issues. First, I am no 3D modeler nor engineer and the learning curve with modeling software is a little steep for someone like me who does very little of it. Second, I think the bracket costs too much to 3D print; since I have no 3D printer, distributing this bracket through a 3D printing service is seemingly my only option. $30 for this piece of plastic doesn't seem economical when you consider the cost of the SCSI2SD. Notice the void in the top (bottom as you view the photo) of the bracket; I omitted this material to make the bracket cheaper to print. I felt it was superfluous, anyway. The bracket is designed so that the SCSI2SD mounts upside down, to the bottom of the bracket, much like a hard drive's PCB (in the photo, the the top of the bracket is actually the bottom). The way the bracket is designed should allow for universal application, or so I think. I feel compelled to release my SketchUp file to you (whoever you are) in hopes that you or someone else appreciates my idea, can see a use for it, can refine it, and contribute any refinements back to the community. For instance, I think all the holes should have threaded brass inserts for #6-32 (or M3?) mounting screws. Maybe one of you knows where to acquire them? Anyway, I'll attach a JPEG image of the bracket here. PM me if you're interested in the SketchUp file. If you decide to use my design, feel free to modify it, make it your own, and redistribute it. All I ask is that you attribute me as [one of] the original creator. Think my idea is junk? I'm open to constructive criticism.
  8. MacPlus86

    SCSI2SD w/ 800k SE

    Hello, I have an SE, and I'd like to replace the internal hard drive with the SCSI2SD. Since I am new to this process, what's the best way to set it up? Can I just plug it in and format the card with a disk tools disk, or do I need to do more than that? Please advise, thank you.
  9. So the new SCSI2SD v5.0 is out and available. The new PCB now fits within the footprint of a traditional 2.5" notebook drive and claims the ability to be powered via TERM power alone. Thinking out loud, how hard would it be to build an adapter PCB to mount this new unit into 68k SCSI Powerbooks? The only thing I'm wondering is if the TERM power input on the SCSI2SD will accept +5v directly or if a diode is needed. This would save having to wire up the power plug on the SCSI2SD card and lower cost/complexity of the adapter. Powerbooks don't provide termination power on the internal connector according to the PB140/170 Dev Notes, so this seems like a simple workaround. It would also solve the problem of the "Powerbook Edition" of the SCSI2SD device being discontinued. Hmm, maybe I should contact the guy at codesrc about this .
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